Bella HEXAL

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Medically reviewed

Laura Arias

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Bella HEXAL

Property Description
Active ingredients Cyproterone acetate and Ethinyl Estradiol
Form Film-coated tablet (Oral)
Pharmacological class Anti-androgens and Estrogens (ATC G03HB01)
Regulatory status Prescription-only medicine (Rx)
Common purpose Hormonal contraception and managing androgen-related symptoms

What Type of Medicine is Bella HEXAL?

Bella HEXAL is a prescription-only systemic hormonal preparation presented as a film-coated tablet for oral administration. The medicine is classified under the Anatomical Therapeutic Chemical (ATC) code G03HB01, defining it specifically as an Anti-androgen and Estrogen combination within the larger group of Sex hormones and modulators. The product is a specialized form of combined oral contraceptive, meaning it utilizes a fixed combination of two synthetic steroid hormones.

The Combination of Cyproterone and Ethinyl Estradiol

This preparation’s structure is defined by its two principal active ingredients: Cyproterone acetate (CPA) and Ethinyl Estradiol (EE). Ethinyl Estradiol functions as the synthetic Oestrogen, while Cyproterone acetate acts as the progestogen but is characterized by a potent anti-androgenic effect. This specific combination is often utilized where an anti-androgen action is desired. This fixed combination profile ensures both components are delivered consistently within each daily tablet, making it distinct from standard formulations.

General Purpose and Mechanism Summary

The medicine's dual composition is directly linked to its two principal functions in women of reproductive age. Its main purpose is to provide highly effective hormonal contraception through the suppression of ovulation. Furthermore, the inclusion of Cyproterone acetate allows the preparation to employ its specialized anti-androgen action, which involves blocking androgen receptors in tissues, offering an essential therapeutic benefit for managing symptoms associated with heightened androgen sensitivity.

What side effects are possible with Bella HEXAL?

Bella HEXAL: Possible Side Effects and Safety Information

Bella HEXAL (Cyproterone acetate/Ethinylestradiol) carries known risks, the most serious of which are related to thromboembolic events (blood clots). Governmental regulatory documents classify the risk of developing venous and arterial blood clots, such as deep vein thrombosis (DVT), pulmonary embolism (PE), myocardial infarction (heart attack), and stroke, as rare but potentially fatal or causing permanent disability. This risk is highest during the first year of use.

Key adverse reactions, classified as Common according to regulatory frequency frameworks, include depressed mood, headache or migraine, nausea, and gynaecological disturbances like irregular vaginal bleeding and breast pain or tenderness. Post-marketing reports have included very rare instances of severe depression, sometimes associated with suicidal ideation.

Important Safety Limitations and Monitoring

  • Contraindications: The medicine is strictly contraindicated in individuals with a current or history of blood clots, specific cardiovascular diseases, certain severe metabolic diseases (e.g., severe hypertension, diabetes with vascular damage), severe liver disease, and known or suspected sex hormone-dependent cancers. Smoking and age over 35 years significantly increase the cardiovascular risk.
  • Use Restriction: Due to the elevated risk of thromboembolism, this product is explicitly restricted to treating moderate to severe acne and/or hirsutism and must not be used solely for contraception.
  • Safety Monitoring: Regular medical evaluation is essential, with specific laboratory tests (e.g., blood tests for clotting factors) and monitoring for symptoms of liver issues, blood clots, or severe mood changes. The duration of exposure is recommended to be minimized after the condition is resolved.

Overdose and Emergency Response

Overdose Map: Overdose and when to seek help — official regulatory information for Bella HEXAL

Domain Official Regulatory Statement
Documented overdose presentations Nausea, vomiting, and vaginal/uterine bleeding (withdrawal bleeding) are the documented clinical manifestations.
Physiological systems affected Gastrointestinal system and the reproductive system.
Dose-related or exposure-related factors Acute overdosage with large amounts of the tablets.
Population-specific overdose notes Withdrawal bleeding may occur even in prepubertal girls following accidental ingestion.
Emergency-response statements Treatment should be symptomatic and supportive.
When immediate medical help is required Seek medical advice/attention immediately if overdose is suspected.

Overdose classifications (high-level)

Classification Aspect Official Regulatory Statement
Severity classification Acute overdosage is generally not associated with serious adverse effects.
Regulatory basis Based on the Summary of Product Characteristics (SmPC) for the fixed combination.
Overdose-context constraints No specific antidote is known.

Resulting overdose structure

Official overdose statements:

  • The clinically documented manifestations of acute overdose include nausea, vomiting, and withdrawal bleeding (vaginal/uterine bleeding).
  • Regulators state that acute overdosage is generally not associated with serious adverse effects, yet patients are instructed to seek immediate medical advice if an overdose is suspected.
  • Treatment for an overdose of this combined hormonal preparation is primarily symptomatic and supportive, as no specific antidote is known.
  • A key population note confirms that withdrawal bleeding is a potential outcome following accidental ingestion, even in prepubertal girls.

Connection to the overall overdose profile (2–4 sentences): The official regulatory profile defines overdose by listing expected, non-life-threatening presentations related to hormonal excess, such as gastrointestinal upset and bleeding. This low-severity classification determines the mandated emergency action, which requires immediate medical attention for symptomatic and supportive care, given the explicit regulatory statement that no specific antidote is available.

Therapeutic Uses of Bella HEXAL

What Bella HEXAL Treats: Main Uses and Benefits

The combination of cyproterone acetate and ethinyl estradiol (Bella HEXAL) is commonly used to help with symptoms related to physical discomfort caused by androgen-related skin and hair issues in women who require concurrent reliable hormonal contraception. This medicine is considered relevant for the management of symptoms related to conditions like severe acne, excessive oiliness (seborrhea), and unwanted, excessive hair growth (hirsutism).


Key Therapeutic Context

This preparation is applied in addressing severe forms of acne and symptoms related to heightened physiological activity of androgens. It is generally used when conditions involving inflammatory or irritative processes of the skin become more disruptive during flare-ups or are unresponsive to previous symptomatic support. It is also relevant in clinical settings where patients need supportive symptom management alongside a highly effective contraceptive method.

“This approach is relevant when symptoms become temporarily overwhelming and symptomatic support is appropriate.”

Quick Fact: Relief for Androgen-Related Symptoms The medication provides support that helps ease the overall symptom burden related to these chronic, visible manifestations, assisting with maintaining functional stability and contributing to improved comfort during periods of heightened symptoms.

Regulatory References

  1. Therapeutic Goods Administration (TGA) advisory on cyproterone with ethinyloestradiol

Eligibility and Restrictions for Use

Bella HEXAL is intended exclusively for women of reproductive age who require treatment for specific androgen-dependent conditions (such as severe acne or hirsutism) and also need concurrent hormonal contraception. Use is not indicated for individuals prior to menarche or following menopause.

The medicine is strictly contraindicated for several populations defined by high-risk health conditions. These include women with any current or history of venous or arterial thromboembolism (blood clots), or those with an underlying thrombogenic predisposition. Use is also prohibited for patients diagnosed with or having a history of meningioma, liver tumours, or other sex-steroid influenced malignancies like breast cancer.

Further contraindications apply to those with severe hepatic disease (until liver function normalizes), severe diabetes mellitus with vascular changes, or a history of migraine with focal neurological symptoms. The medicine is also contraindicated during pregnancy and lactation, and it must not be taken simultaneously with any other hormonal contraceptive. Use must be halted before major surgery or prolonged immobilisation and only restarted after full ambulation.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Bella HEXAL (containing Cyproterone Acetate and Ethinylestradiol) is defined by the metabolism of its hormonal components and its effect on other co-administered substances. All interaction constraints listed here are based strictly on official regulatory documentation.

Clinically Significant Interacting Substances

Classification Examples of Interacting Medicines or Products
Hepatic Enzyme Inducers Anticonvulsants (e.g., Phenytoin, Carbamazepine), Anti-infectives (Rifampicin, Griseofulvin), and the herbal product St. John's wort (Hypericum perforatum).
Enzyme Inhibitors Certain Azole antifungals and Macrolides (e.g., strong CYP3A4 inhibitors).
Other Hormones Other hormonal contraceptives (prohibited combination).

Practical Interaction Constraints

  • Reduced Efficacy Risk: Medicines that induce hepatic enzymes (e.g., CYP3A4) accelerate the clearance of Bella HEXAL's active components, potentially leading to significantly reduced plasma concentrations. Concomitant use with St. John's wort is contraindicated due to this risk.
  • Contraindicated Combinations: Co-administration with any other hormonal contraceptive is strictly prohibited to prevent overexposure to hormones and associated risks.
  • Impact on Other Drugs: Ethinylestradiol can inhibit the clearance of certain co-medications (e.g., Tizanidine, Theophylline), which can result in increased plasma levels of those drugs.
  • Procedural Rules: When co-administered with short-term hepatic enzyme inducers, supplementary barrier methods are required during treatment and for a period of 28 days after stopping the inducer.

Mechanism of Action

Central Regulation and Ovarian Suppression

This domain addresses the drug's action on the Hypothalamic-Pituitary-Ovarian (HPO) axis). The combined Ethinyl Estradiol and Cyproterone acetate impose a pronounced negative feedback on the brain and pituitary gland, significantly suppressing the release of key hormones like FSH and LH. This signaling blockade initiates a cascade that leads to the arrested development of the dominant ovarian follicle and ultimately results in sustained anovulation, which is the primary inhibitory physiological effect.


Dual Modulation of Androgen Signaling

This mechanism involves a two-pronged action against androgen signaling. Cyproterone acetate acts as a competitive antagonist at the peripheral Androgen Receptor (AR), directly blocking the ability of endogenous androgens like DHT to activate cells in tissues such as sebaceous glands. Systemically, Ethinyl Estradiol increases the hepatic synthesis of Sex Hormone-Binding Globulin (SHBG), which binds and decreases the fraction of biologically active, unbound androgen circulating in the bloodstream. These complementary mechanisms achieve a sustained decrease in tissue responsiveness to androgens.

Dosage and Administration Information

The fixed-combination medicine Bella HEXAL is administered exclusively via the oral route as a coated tablet, which contains a fixed dose of 2.0 mg of cyproterone acetate and 0.035 mg of ethinyl estradiol. The standard dose is one tablet daily, maintained throughout the course of use for women of reproductive age. The preparation must be taken at the same time each day with a small amount of liquid to maintain a consistent dosing interval, regardless of meals.

The administration follows a strict 28-day cyclic schedule. Users take the active tablet for 21 consecutive days, followed by a mandated 7-day tablet-free interval. The initial course is started on the first day of the menstrual cycle, known as Day 1. The medicine must not be used concurrently with any other hormonal contraceptive preparation, as this would alter the intended use.

Regarding the overall treatment course, improvement may require several months of continuous use. Discontinuation is suggested 3 to 4 cycles after the clinical signs have completely resolved. Specific procedures govern the handling of a missed tablet; if the tablet is missed by more than 12 hours, a supplementary non-hormonal method is required for the following seven days.

Recent Clinical Evidence

Recent Clinical Evidence Summary

Research regarding Bella HEXAL, a combined oral contraceptive containing drospirenone and ethinylestradiol, focuses primarily on its use for contraception and the treatment of moderate acne and symptoms of Premenstrual Dysphoric Disorder (PMDD) in women seeking oral contraception.

Efficacy and Administration

Clinical trials have investigated the contraceptive effectiveness of the combination, reporting a high degree of efficacy when the tablets are taken correctly and consistently as prescribed. The regimen involves 24 active hormone tablets followed by 4 inactive tablets, which differs from the traditional 21/7 regimen used in some other formulations. Research has explored the impact of this extended active tablet phase on maintaining consistent hormone levels throughout the cycle.

Studies examining its use for moderate acne have evaluated changes in skin condition markers over several treatment cycles. Its efficacy in managing symptoms of PMDD has also been an area of clinical investigation, with findings suggesting a potential role in symptom management for those seeking oral contraception.

Safety and Tolerability Profiles

Commonly Studied Adverse Events:

Event Category Findings from Clinical Studies
Thromboembolic Risk The risk of blood clots (venous thromboembolic events, or VTEs) has been a primary focus of combined oral contraceptive research, including studies on formulations containing drospirenone and ethinylestradiol.
Cardiac Effects Clinical trials and post-market surveillance have examined the safety profile in various populations, with a focus on potential associations between the combination and cardiovascular endpoints, including those in populations with pre-existing conditions.

In most clinical evaluations, the medication was generally found to be well-tolerated. Patient reporting of common, non-serious side effects, such as headache or nausea, is consistent across formulations of this type.

Frequently Asked Questions (FAQ)

Common questions about Bella HEXAL (FAQ)

Q: What should I do if I am taking St. John's wort?

Regulatory documents indicate that the use of Bella HEXAL concurrently with the herbal product St. John's wort (Hypericum perforatum) is contraindicated. This is because St. John's wort is an enzyme inducer, which may accelerate the breakdown of the medicine's hormones, potentially leading to a loss of therapeutic effectiveness for the medication.

Q: What are the common side effects of Bella HEXAL?

According to the official product information and clinical studies, the most common side effects observed include depressed mood, headache or migraine, and nausea. Gynaecological disturbances such as irregular vaginal bleeding and breast pain or tenderness are also frequently reported.

Q: When should I stop taking the medicine?

The official guideline for concluding treatment suggests that discontinuation should occur approximately 3 to 4 cycles after the treated clinical signs (such as acne or hirsutism) have completely resolved. Furthermore, official warnings state that the medicine must be halted before major surgery or prolonged periods of immobilization.

Q: What is the 21/7 regimen?

The 21/7 regimen refers to the standard 28-day cyclic schedule for administration. This schedule involves 21 consecutive days of active tablet use, followed by a mandatory 7-day tablet-free interval. This regimen describes the standard cyclical administration of the product.

Q: How long does it take for Bella HEXAL to start working as a contraceptive?

Official information indicates that when starting treatment, supplementary non-hormonal contraception (such as a barrier method) is required for the initial 7 days of taking the active tablets. This is recommended to maintain a reliable contraceptive effect.

Q: What color is the tablet?

The official product description, found in the regulatory documents, specifies the physical characteristics of the film-coated tablet, including its color and shape.

Q: Can Bella HEXAL be crushed or chewed?

The medicine is a coated tablet which should be taken via the oral route with a small amount of liquid. It should be swallowed whole to maintain its intended form and release profile, and official information indicates it should not be crushed or chewed.

Q: If I have vomiting or diarrhea, will the medicine still work?

Severe gastrointestinal issues, specifically vomiting or diarrhea occurring within 3 to 4 hours of taking the tablet, may lead to a loss of efficacy because the active ingredients might not be fully absorbed. The official product information addresses that the procedure for a missed pill may need to be followed in such circumstances.

How should Bella HEXAL be stored and disposed of?

Storage Requirements

Bella HEXAL must be stored according to official regulatory labeling to ensure product integrity and stability.

Condition Requirement
Temperature Do not store above 30 C
Protection Protect from moisture
Handling Keep in the original package and keep the container tightly closed
Safety Keep out of the sight and reach of children

Disposal Instructions

Unused medicinal product or waste material should be disposed of in accordance with local requirements. This instruction means the medication should not be discarded via household trash or wastewater unless specifically authorized by local regulations for pharmaceutical waste.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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